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參數(shù)資料
| 型號： | T7693 |
| 廠商： | Lineage Power |
| 英文描述： | 3.3 V T1/E1 Quad Line Interface( 3.3 V T1/E四線接口) |
| 中文描述： | 四3.3伏的T1/E1線路接口（3.3伏T1 /電子四線接口） |
| 文件頁數(shù)： | 38/42頁 |
| 文件大?。?/td> | 726K |
| 代理商： | T7693 |
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T7690 5.0 V T1/E1 Quad Line Interface
T7693 3.3 V T1/E1 Quad Line Interface
Data Sheet
May 1998
36
Lucent Technologies Inc.
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings can cause permanent or latent damage to the device. These
are absolute stress ratings only. Functional operation of the device is not implied at these or any other conditions in
excess of those given in the operational sections of this device specification. Exposure to absolute maximum rat-
ings for extended periods can adversely affect device reliability.
Table 25. Absolute Maximum Ratings
Handling Precautions
Although protection circuitry has been designed into this device, proper precautions should be taken to avoid expo-
sure to electrostatic discharge (ESD) during handling and mounting. Lucent employs a human-body model (HBM)
and charged-device model (CDM) for ESD-susceptibility testing and protection design evaluation. ESD voltage
thresholds are dependent on the circuit parameters used in the defined model. No industry-wide standard has
been adopted for the CDM. However, a standard HBM (resistance = 1500
, capacitance = 100 pF) is widely used
and, therefore, can be used for comparison purposes. The HBM ESD threshold presented here was obtained by
using these circuit parameters.
Operating Conditions
* Required under all loading conditions. Each single transmit pulse requires a 90 mA current spike from the power supply for approximately
100 ns. Circuit pack routing of V
DD
should minimize impedance.
Parameter
Min
–0.5
–65
—
–0.5
—
Max
6.5
125
0.5
—
0.5
Unit
V
°
C
V
V
V
dc Supply Voltage
Storage Temperature
Maximum Voltage (digital pins) with Respect to V
DDD
Minimum Voltage (digital pins) with Respect to GND
D
Maximum Allowable Voltages (RTIP[1—4], RRING[1—4])
with Respect to V
DD
Minimum Allowable Voltages (RTIP[1—4], RRING[1—4])
with Respect to GND
–0.5
—
V
Table 26. HBM and CDM ESD Threshold Voltage
Device
T7690
T7693
Voltage
>1500 V
>1000 V
Table 27. Recommended Operating Conditions
Parameter
Symbol
T
A
V
DD
V
DD
Min
–40
4.75
3.135
Typ
—
5.0
3.3
Max
85
5.25
3.465
Unit
°
C
V
V
Ambient Temperature
T7690 Power Supply
T7693 Power Supply*
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